From 3498cc9775e255875ae30ecfb4e29ea1220923a3 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Wed, 25 May 2016 19:19:07 -0700 Subject: x86: acpi: Make irqroute.asl common The irqroute.asl file is already common enough to all x86 platforms. Platform ASL files need only provide a irqroute.h to describe how internal PCI devices and PCIe downstream port devices' INTx pins are routed to which PIRQ pin. Signed-off-by: Bin Meng Reviewed-by: Simon Glass --- arch/x86/include/asm/acpi/irqroute.asl | 48 ++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 arch/x86/include/asm/acpi/irqroute.asl (limited to 'arch/x86/include/asm/acpi/irqroute.asl') diff --git a/arch/x86/include/asm/acpi/irqroute.asl b/arch/x86/include/asm/acpi/irqroute.asl new file mode 100644 index 0000000000..64d38207d9 --- /dev/null +++ b/arch/x86/include/asm/acpi/irqroute.asl @@ -0,0 +1,48 @@ +/* + * Copyright (C) 2007-2009 coresystems GmbH + * Copyright (C) 2013 Google Inc. + * Copyright (C) 2016 Bin Meng + * + * Modified from coreboot src/soc/intel/baytrail/acpi/irqroute.asl + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +Name(\PICM, 0) + +/* + * The _PIC method is called by the OS to choose between interrupt + * routing via the i8259 interrupt controller or the APIC. + * + * _PIC is called with a parameter of 0 for i8259 configuration and + * with a parameter of 1 for Local APIC/IOAPIC configuration. + */ +Method(\_PIC, 1) +{ + /* Remember the OS' IRQ routing choice */ + Store(Arg0, PICM) +} + +/* PCI interrupt routing */ +Method(_PRT) { + If (PICM) { + Return (Package() { + #undef PIC_MODE + #include "irq_helper.h" + PCI_DEV_PIRQ_ROUTES + }) + } Else { + Return (Package() { + #define PIC_MODE + #include "irq_helper.h" + PCI_DEV_PIRQ_ROUTES + }) + } + +} + +/* PCIe downstream ports interrupt routing */ +PCIE_BRIDGE_IRQ_ROUTES +#undef PIC_MODE +#include "irq_helper.h" +PCIE_BRIDGE_IRQ_ROUTES -- cgit v1.2.1